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<p>[QUOTE=&quot;quarter-back, post: 1961591, member: 47022&quot;]I soaked three pennies (1863, 1882, 1900) in acetone for about 10 minutes and then let them air dry prior to putting them in two X twos. In two of the three coins, what looks to be fresh wear on the front knee appeared.&nbsp; The two coins on which this happened were the least worn of the three (the 1863 and the 1900). Anyone else have this problem? Any suggestions for how to tell which coins may do this in the future?[/QUOTE]</p><p><br /></p>

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